Question

if a man weighs 90 kg on the surface of earth , then height above surface of earth of radius r weighs 30N

Answer 1

Answer:

plzzz make you question properly arranged

Explanation:

the S.I unit of mass is kg, not Newton which is a unit of weight if. if you have any doubt plzz follow me and ask this question again I will surely give you the answer as you question will directly be addressed to me

Answer 2

Explanation:

g'=g/2

g/2=g/(1+h/R)²

(1+h/R)²= 2

1+h/R=√2

h/R=√2-1

h/R=1.41-1=0.41

h=0.41R

Ans:(A) 0.41 R